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Trieste

$302+ Cheap flights from Denver (DEN) to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — TRS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Denver to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 31, 2025.

Round-trip from

$808
(Kiwi.com)

One-way from

$302
(Kiwi.com)
From Denver Intl to Trieste Ronchi dei Legionari
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One-way flight from Denver Intl to Trieste Ronchi dei Legionari
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Find flight deals from Denver to Trieste

Cheapest flights from Denver to Trieste
Explore the most affordable flight options available from Denver to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/154:15 pmDEN - TRS
2 stops22h 10mLufthansa
Tue 8/196:30 amTRS - DEN
1 stop17h 05mLufthansa
Deal found 7/30$808
This United deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:59 pmDEN - TRS
1 stop12h 06mMultiple Airlines
Tue 8/196:30 amTRS - DEN
1 stop17h 05mMultiple Airlines
Deal found 7/30$906

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Trieste that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Denver to Trieste that are best for you.

Fly from

Denver

Fly to

Trieste

Route

Depart

Return

Price

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Fri 8/15

4:15 pm-10:25 pm

2 stops22h 10m

Trieste Ronchi dei Legionari

Tue 8/19

6:30 am-3:35 pm

1 stop17h 05m

$808

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Fri 8/15

5:59 pm-2:05 pm

1 stop12h 06m

Trieste Ronchi dei Legionari

Tue 8/19

6:30 am-3:35 pm

1 stop17h 05m

$906

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Wed 10/15

11:45 am-9:35 am

3 stops37h 50m

$302

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Wed 10/15

5:59 pm-2:05 pm

1 stop12h 06m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Denver to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Trieste

Get insights into the airlines that provide service to Trieste. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trieste. Reviews last updated July 31, 2025.
Peruse reviews from past customers who have flown with Lufthansa from Denver to Trieste to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,275 reviews

Comfort

6.8

Overall

6.8

Boarding

7.0

Crew

7.6

Entertainment

6.4

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.
Lufthansa
6.8
Okay
7,275 reviews
Lufthansa
6.8
Okay
7,275 reviews

Comfort

6.8

Overall

6.8

Boarding

7.0

Crew

7.6

Entertainment

6.4

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

Related info for your journey

Find useful and relevant information for your journey from Denver to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Denver to Trieste round-trip?

    Our cheapest airline available from Denver to Trieste is Lufthansa. Our recent data shows that you can find tickets from as low as $808 on this airline.

  • Can I find deals for flights from Denver to Trieste that include hotel bookings?

    Yes. In addition to deals on Denver to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Trieste?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Trieste.

  • Can I find deals for business class flights from Denver to Trieste?

    Yes. Cheapflights offers flight deals from Denver to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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